American Water Works Association & ProQuest (Firm). (2010). Water transmission and distribution: Student workbook. American Water Works Association.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)American Water Works Association و ProQuest (Firm). Water Transmission and Distribution: Student Workbook. Denver, Colo.: American Water Works Association, 2010.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)American Water Works Association و ProQuest (Firm). Water Transmission and Distribution: Student Workbook. American Water Works Association, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.